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Electrically small antenna for maximising transmission into HF ground waves

Electrically small antenna for maximising transmission into HF ground waves

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  • Author(s): S. Lim 1 ; H. Choo 2 ; R.L. Rogers 3 ; H. Ling 1
    • View affiliations
    • Affiliations: 1: Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, USA
      2: School of Electronic and Electrical Engineering, Hongik University, Seoul, Republic of Korea
      3: Applied Research Laboratories, The University of Texas at Austin, Austin, USA
  • Source: Volume 40, Issue 22, 28 October 2004, p. 1388 – 1389
    DOI:  10.1049/el:20045888 , Print ISSN 0013-5194, Online ISSN 1350-911X
© IEE
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A top-loaded, inductively-coupled, electrically small antenna is designed for HF ground wave transmission. A genetic algorithm is used to optimise the antenna parameters. Two prototype antennas have been built and the test results match well with simulations. Both antennas have an electrical size kr of 0.2, greater than 65% efficiency and transmission performance within 1 dB of a commercial whip.

Inspec keywords: helical antennas; HF antennas

Other keywords: HF ground waves; transmission performance; electrically small antenna; antenna parameters; prototype antennas; 1 dB; inductively coupled antenna; genetic algorithm

Subjects: Single antennas

References

    1. 1)
    2. 2)
    3. 3)
      • Choo, H., Ling, H.: `Design of electrically small wire antennas using genetic algorithm taking into consideration of bandwidth and efficiency', IEEE Antennas Propagat. Soc. Int. Symp. Dig., June 2002, San Antonio, TX, p. 330–333.
    4. 4)
    5. 5)
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